Top 10 factories of Rubber Cap in China 2026

Anhui Zhongding Sealing Parts Co., Ltd.
Core Products: Automotive rubber caps, oil-resistant NBR caps, silicone dust caps, valve stem caps
Highlights: rubber cap giant; listed (000887); 40+ yrs; 10 billion+ pcs annual output; global top 5 sealing supplier; serves Volkswagen, Toyota, GM; IATF 16949, FDA
Certifications: ISO 9001, IATF 16949, FDA, RoHS

Xiamen Kingtom Rubber & Plastic Co., Ltd.
Core Products: Industrial rubber caps, EPDM pipe caps, silicone protective caps, custom molded caps
Highlights: Export leader; 20+ yrs; 5 billion pcs/year; 30+ countries; ISO 9001, ISO 14001; advanced compression/injection molding; automotive/medical/electronics
Certifications: ISO 9001, ISO 14001, CE, RoHS

Hengshui Mintong Rubber & Plastic Products Co., Ltd.
Core Products: Pipe rubber caps, flange protective caps, high-pressure resistant caps, engineering rubber components
Highlights: Industrial pipe cap specialist; 18+ yrs; 3 billion pcs/year; integrated mixing/vulcanization; oil/gas/petchemical focus; ISO 9001, SGS
Certifications: ISO 9001, SGS, GB/T 26572

Cixi Changrong Rubber Co., Ltd.
Core Products: Precision rubber caps, electronic insulation caps, terminal protective caps, small-size dust caps
Highlights: Precision miniature cap expert; 15+ yrs; 2.5 billion pcs/year; tolerance ±0.02mm; advanced mold tech; electrical/electronic industry leader
Certifications: ISO 9001, CE, RoHS

Ningbo Shangfeng Rubber & Plastic Co., Ltd.
Core Products: Food-grade silicone caps, medical protective caps, sanitary rubber caps, anti-slip end caps
Highlights: Sanitary/medical specialist; 12+ yrs; 1.8 billion pcs/year; FDA/NSF compliant; Ra ≤0.8μm; food/pharma/medical devices
Certifications: ISO 9001, FDA, NSF, CE

Haining Chaoyue Seals Co., Ltd located in Haining City, Zhejiang Province, which near the city Shanghai(120KM)and Hangzhou(90KM)). Haining Chaoyue Seals Co., Ltd. manily engages in the field of providing the Nonstandard Custom made Molded Rubber. We are small-sized enterprises in Zhejiang China(1200square meter, 20 people). Based on the idea of developing the level of national rubber industry. Our Advantage: We provide service of rubber manufacturing technology consultation and product R & D (OEM & ODM)

A. Cheap mold fee

B. Rubber molding for kind of size / shape, possible to make.

C. Custom personalise logo accept

D. Over 10000 kind of Custom Molded Rubber establishment and the consummation.

E. Various materials: Silicone, EPDM, NBR, FKM (Viton), HNBR, NR, Neoprene (CR), SBR, MPU, etc

F. Different hardness: 10 to 90 Shore A

G. Various colors: translucent, black, white, blue, green, red, etc.

H. Our components and materials are used: sealing, insulation, silencers, protect,etc

Qingdao Bright Rubber & Plastic Co., Ltd.
Core Products: Heavy-duty rubber caps, large-diameter pipe caps, wear-resistant equipment caps, mining protective caps
Highlights: Heavy industrial cap leader; 25+ yrs; 2.2 billion pcs/year; high hardness (Shore A 60–90); mining/construction/machinery
Certifications: ISO 9001, SGS, MA (mining safety)

Xiamen Best Seal Imp. & Exp. Co., Ltd.
Core Products: Custom rubber caps, special-shaped caps, high-temperature resistant silicone caps, anti-corrosion EPDM caps
Highlights: Customization expert; 10+ yrs; 1.5 billion pcs/year; rapid prototyping (3–7 days); 50+ material options; aerospace/new energy
Certifications: ISO 9001, AS9100, RoHS

Hebei First Rubber Medical Technology Co., Ltd.
Core Products: Medical rubber caps, butyl rubber stoppers, syringe protective caps, sterile sealing caps
Highlights: Medical rubber cap pioneer; 60+ yrs; 10 billion pcs/year; GMP, FDA, DMF; Asia's top medical rubber packaging supplier
Certifications: ISO 9001, ISO 13485, GMP, FDA, DMF

Tianjin North Rubber Industry (Group) Co., Ltd.
Core Products: Automotive dust caps, shock absorber caps, rubber end caps, suspension component caps
Highlights: Automotive chassis cap specialist; 30+ yrs; 2.8 billion pcs/year; OE supplier for FAW, Dongfeng; IATF 16949
Certifications: ISO 9001, IATF 16949, CNAS